<template>
<!-- 面包屑区域 -->
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
        <!-- 搜索与添加按钮区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query " clearable @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>
        <!-- 商品数据列表区域 -->
        <el-table :data="goodslist" border stripe>
            <el-table-column label="#" type="index"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column label="商品价格" prop="goods_price" width="90px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
            <el-table-column label="创建时间" prop="add_time" width="160px">
            <!-- 引用时间过滤器 -->
                <template slot-scope="scope">{{scope.row.add_time | DataFormat}}</template>
            </el-table-column>
            <el-table-column label="操作" width="130px">
                <template slot-scope="scope">
                    <el-button size="mini" type="primary" icon="el-icon-edit"></el-button>
                    <el-button size="mini" type="danger" icon="el-icon-delete" @click="removrById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total" background>
    </el-pagination>
        </el-card>
    </div>
</template>

<script>
export default {
    data(){
        return {
            //查询参数对象
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:10
            },
            //商品列表
            goodslist:[],
            //总数居条数
            total:0
        }
    },
    created(){
       this.getGoodsList()
    },
    methods:{
        //根据分页获取对应的商品列表
       async getGoodsList(){
            const {data:res}=await this.$http.get('goods',{params:this.queryInfo})
            // console.log(res.data);
            if(res.meta.status!==200){
                return this.$message.error('获取商品列表失败！')
            }
            this.$message.success('获取商品列表成功！')
            this.goodslist=res.data.goods
            this.total=res.data.total
            // console.log(this.total);
        },
        //当改变页面总数（total）时，触发这个事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize=newSize
            this.getGoodsList()
        },
        //当改变页面值时，触发这个事件
        handleCurrentChange(newNum){
            this.queryInfo.pagenum=newNum
            this.getGoodsList()
        },
        //点击删除按钮，删除对应的数据
       async removrById(id){
           const confirmResult= await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        // console.log(confirmResult);
        if(confirmResult!=='confirm'){
            return this.$message.error('已取消了删除！')
        }
        const {data:res}=await this.$http.delete(`goods/${id}`)
        if(res.meta.status!==200){
           return this.$message.error('删除失败！')
        }
        this.$message.success('删除成功！')
        this.getGoodsList()
        },
        goAddpage(){
            this.$router.push('/goods/add')
        }
    }
}
</script>

<style>

</style>